What Heijunka is & How it Smooths Call Centre Production

The Japanese word Heijunka, pronounced hi-JUNE-kuh means ?levelling? in the sense of balancing workflows. It helps lean organizations shift priorities in the face of fluctuating customer demand. The goal is to have the entire operation working at the same pace throughout, by continuously adjusting the balance between predictability, flexibility, and stability to level out demand.

Henry Ford turned the American motor manufacturing industry upside down by mass-producing his iconic black motor cars on two separate production lines. In this photograph, body shells manufactured upstairs come down a ramp and drop onto a procession of cars almost ready to roll in 1913.

Smoothing Production in the Call Centre Industry

Call Centres work best in small teams, each with a supervisor to take over complex conversations. In the past, these tended to operate in silos with each group in semi-isolation representing a different set of clients. Calls came through to operators the instant the previous ones concluded. By the law of averages, inevitably one had more workload than the rest at a particular point in time as per this example.

Modern telecoms technology makes it possible to switch incoming lines to different call centre teams, provided these are multi-skilled. A central operator controls this manually by observing imbalanced workflows on a visual system called a Heijunka Box. The following example comes from a different industry, and highlights how eight teams share uneven demand for six products.

This departure from building handmade automobiles allowed Henry to move his workforce around to eliminate bottlenecks. For example, if rolls of seat leather arrived late he could send extra hands upstairs to speed up the work there, while simultaneously slowing chassis production. Ford had the further advantage of a virtual monopoly in the affordable car market. He made his cars at the rate that suited him best, with waiting lists extending for months.

A Modern, More Flexible Approach

Forces of open competition and the Six Sigma drive for as-close-to-zero defects dictates a more flexible approach, as embodied in this image published by the Six Sigma organisation. This represents an ideal state. In reality, one force usually has greater influence, for example decreasing stability enforces a more flexible approach.

Years ago, Japanese car manufacturer Toyota moved away from batching in favour of a more customer-centric approach, whereby buyers could customise orders from options held in stock for different variations of the same basic model. The most effective approach lies somewhere between Henry Ford?s inflexibility and Toyota?s openness, subject to the circumstances at the moment.

A Worked Factory Example

The following diagram suggests a practical Heijunka application in a factory producing three colours of identical hats. There are two machines for each option, one or both of which may be running. In the event of a large order for say blue hats, the company has the option of shifting some blue raw material to the red and green lines so to have the entire operation working at a similar rate.

Predictability, Flexibility, and Stability at Call Centre Service

The rate of incoming calls is a moving average characterised by spikes in demand. Since the caller has no knowledge whether high activity advisories are genuine, it is important to service them as quickly as possible. Lean process engineering provides technology to facilitate flexibility. Depending on individual circumstances, each call centre may have its own definition of what constitutes an acceptably stable situation.

Contact Us

  • (+353)(0)1-443-3807 – IRL
  • (+44)(0)20-7193-9751 – UK

Check our similar posts

What Is Technical Debt? A Complete Guide

You buy the latest iPhone on credit. Turn to fast car loan services to get yourself those wheels you’ve been eyeing for a while. Take out a mortgage to realise your dream of being a homeowner. Regardless of the motive, the common denominator is going into financial debt to achieve something today, and pay it off in future, with interest. The final cost will be higher than the loan value that you took out in the first place. However, debt is not limited to the financial world.

Technical Debt Definition

Technical debt – which is also referred to as code debt, design debt or tech debt – is the result of the development team taking shortcuts in the code to release a product today, which will need to be fixed later on. The quality of the code takes a backseat to issues like market forces, such as when there’s pressure to get a product out there to beat a deadline, front-run the competition, or even calm jittery consumers. Creating perfect code would take time, so the team opts for a compromised version, which they will come back later to resolve. It’s basically using a speedy temporary fix instead of waiting for a more comprehensive solution whose development would be slower.

How rampant is it? 25% of the development time in large software organisations is actually spent dealing with tech debt, according to a multiple case study of 15 organizations. “Large” here means organizations with over 250 employees. It is estimated that global technical debt will cost companies $4 trillion by 2024.

Is there interest on technical debt?

When you take out a mortgage or service a car loan, the longer that it takes to clear it the higher the interest will be. A similar case applies to technical debt. In the rush to release the software, it comes with problems like bugs in the code, incompatibility with some applications that would need it, absent documentation, and other issues that pop up over time. This will affect the usability of the product, slow down operations – and even grind systems to a halt, costing your business. Here’s the catch: just like the financial loan, the longer that one takes before resolving the issues with rushed software, the greater the problems will pile up, and more it will take to rectify and implement changes. This additional rework that will be required in future is the interest on the technical debt.

Reasons For Getting Into Technical Debt

In the financial world, there are good and bad reasons for getting into debt. Taking a loan to boost your business cashflow or buy that piece of land where you will build your home – these are understandable. Buying an expensive umbrella on credit because ‘it will go with your outfit‘ won’t win you an award for prudent financial management. This also applies to technical debt.

There are situations where product delivery takes precedence over having completely clean code, such as for start-ups that need their operations to keep running for the brand to remain relevant, a fintech app that consumers rely on daily, or situations where user feedback is needed for modifications to be made to the software early. On the other hand, incurring technical debt because the design team chooses to focus on other products that are more interesting, thus neglecting the software and only releasing a “just-usable” version will be a bad reason.

Some of the common reasons for technical debt include:

  • Inadequate project definition at the start – Where failing to accurately define product requirements up-front leads to software development that will need to be reworked later
  • Business pressure – Here the business is under pressure to release a product, such as an app or upgrade quickly before the required changes to the code are completed.
  • Lacking a test suite – Without the environment to exhaustively check for bugs and apply fixes before the public release of a product, more resources will be required later to resolve them as they arise.
  • Poor collaboration – From inadequate communication amongst the different product development teams and across the business hierarchy, to junior developers not being mentored properly, these will contribute to technical debt with the products that are released.
  • Lack of documentation – Have you launched code without its supporting documentation? This is a debt that will need to be fulfilled.
  • Parallel development – This is seen when working on different sections of a product in isolation which will, later on, need to be merged into a single source. The greater the extent of modification on an individual branch – especially when it affects its compatibility with the rest of the code, the higher the technical debt.
  • Skipping industrial standards – If you fail to adhere to industry-standard features and technologies when developing the product, there will be technical debt because you will eventually need to rework the product to align with them for it to continue being relevant.
  • Last-minute product changes – Incorporating changes that hadn’t been planned for just before its release will affect the future development of the product due to the checks, documentation and modifications that will be required later on

Types of Technical Debt

There are various types of technical debt, and this will largely depend on how you look at it.

  • Intentional technical debt – which is the debt that is consciously taken on as a strategy in the business operations.
  • Unintentional technical debt – where the debt is non-strategic, usually the consequences of a poor job being done.

This is further expounded in the Technical Debt Quadrant” put forth by Martin Fowler, which attempts to categorise it based on the context and intent:

Technical Debt Quadrant

Source: MartinFowler.com

Final thoughts

Technical debt is common, and not inherently bad. Just like financial debt, it will depend on the purpose that it has been taken up, and plans to clear it. Start-ups battling with pressure to launch their products and get ahead, software companies that have cut-throat competition to deliver fast – development teams usually find themselves having to take on technical debt instead of waiting to launch the products later. In fact, nearly all of the software products in use today have some sort of technical debt.

But no one likes being in debt. Actually, technical staff often find themselves clashing with business executives as they try to emphasise the implications involved when pushing for product launch before the code is completely ready. From a business perspective, it’s all about weighing the trade-offs, when factoring in aspects such as the aspects market situation, competition and consumer needs. So, is technical debt good or bad? It will depend on the context. Look at it this way: just like financial debt, it is not a problem as long as it is manageable. When you exceed your limits and allow the debt to spiral out of control, it can grind your operations to a halt, with the ripple effects cascading through your business.

 

How DevOps oils the Value Chain

DevOps ? a clipped compound of development and operations – is a way of working whereby software developers are in a team with project beneficiaries. A client centred approach extends the project plan to include the life cycle of the product or service, for which the software is developed.

We can then no longer speak of a software project for say Joe?s Accounting App. The software has no intrinsic value of its own. It follows that the software engineers are building an accounting app product. This is a small, crucially important distinction, because they are no longer in a silo with different business interests.

To take the analogy further, the developers are no longer contractors possibly trying to stretch out the process. They are members of Joe?s accounting company, and they are just as keen to get to market fast as Joe is to start earning income. DevOps uses this synergy to achieve the overarching business goal.

A Brief Introduction to OpsDev

You can skip this section if you already read this article. If not then you need to know that DevOps is a culture, not a working method. The three ?members? are the software developers, the beneficiaries, and a quality control mechanism. The developers break their task into smaller chunks instead of releasing the code to quality control as a single batch. As a result, the review process happens contiguously along these simplified lines.

Code QC Test ? ? ?
? Code QC Test ? ?
? ? Code QC Test ?
? ? ? Code QC Test
Colour Key Developers Quality Control Beneficiary

This is a marked improvement over the previously cumbersome method below.

Write the Code ? Test the Code ? Use the Code
? Evaluate, Schedule for Next Review ?

Working quickly and releasing smaller amounts of code means the OpsDev team learns quickly from mistakes, and should come to product release ahead of any competitor using the older, more linear method. The shared method of working releases huge resources in terms of user experience and in-line QC practices. Instead of being in a silo working on its own, development finds it has a richer brief and more support from being ?on the same side of the organisation?.

The Key Role that Application Program Interfaces Play

Application Program Interfaces, or API?s for short, are building blocks for software applications. Using proprietary software-bridges speeds this process up. A good example would be the PayPal applications that we find on so many websites today. API?s are not just for commercial sites, and they can reduce costs and improve efficiency considerably.

The following diagram courtesy of TIBCO illustrates how second-party applications integrate with PayPal architecture via an API fa?ade.

Working quickly and releasing smaller amounts of code means the OpsDev team learns quickly from mistakes, and should come to product release ahead of any competitor using the older, more linear method. The shared method of working releases huge resources in terms of user experience and in-line QC practices. Instead of being in a silo working on its own, development finds it has a richer brief and more support from being ?on the same side of the organisation?.

imgd2.jpg

The DevOps Revolution Continues ?

We close with some important insights from an interview with Jim Stoneham. He was general manager of the Yahoo Communities business unit, at the time Flickr became a part. ?Flickr was a codebase,? Jim recalls, ?that evolved to operate at high scale over 7 years – and continuing to scale while adding and refining features was no small challenge. During this transition, it was a huge advantage that there was such an integrated dev and ops team?

The ?maturity model? as engineers refer to DevOps status currently, enables developers to learn faster, and deploy upgrades ahead of their competitors. This means the client reaches and exceeds break-even sooner. DevOps lubricates the value chain so companies add value to a product faster. One reason it worked so well with Flickr, was the immense trust between Dev and Ops, and that is a lesson we should learn.

?We transformed from a team of employees to a team of owners. When you move at that speed, and are looking at the numbers and the results daily, your investment level radically changes. This just can’t happen in teams that release quarterly, and it’s difficult even with monthly cycles.? (Jim Stoneham)

Contact Us

  • (+353)(0)1-443-3807 – IRL
  • (+44)(0)20-7193-9751 – UK
Field service and customer transparency

These days, a business is as good as it is transparent. Businesses are on unsteady ground because of the ever changing face of social media and a never-seen-before demand for information. With many sources of info on the internet, being credible is a sure way of building trust and loyalty among clients.

Here is an example. Customers will always believe what they see. If they see the work you put into furnishing their favourite products, you have a greater chance of getting their approval. They can invest more in what they see. The clothing merchandise Patagonia did this for their Footprint Chronicles line to show how their jackets are made and worked out fine for them.
Transparency is a must. Nowadays, customers never forget when they feel cheated. It is even harder to ensure transparency because many clients are also experts who scrutinise every detail. So, how can you keep transparency at the forefront?

Have transparent workforce management

Customers always look for new information and want to be in the know. There is nothing worse than not being able find a product manual or an easy way to set up appointments. By giving your clients a self-service option, they can pick the services they want. This leaves more time to get stuff done rather than answering unending service calls from dissatisfied customers.

For instance, you could have a field service customer self-service application that allows customers to look for personalised services, a machine manual, book appointments, or solve any other problem. Customers then get feedback anytime. This one-on-one approach can help customers feel like their questions are being answered. They?ll also not go through the hassle of long hold times to reach an available customer service representative.

Create transparency in field service repair projects

If field technicians have access to field service software, it allows technicians to be more open to customers. This gives them vital information like customer history and the ERP, so that they can explain changes that were made after past enquiries and what is being done in current products. Such information can be a guide for future updates or let the techs suggest products that suit a client’s taste. Unlike always staying offline and out of touch with your client, using field service software can allow entry of allowances and mileage, and also let the customer know the delivery time for their products.

Show customers what they’re paying for

With field service automation, billing will also be transparent. By using the available information about your field service solution, the station can send updated service reports to the customer like mileage, allowances, parts, hours worked, and photos of broken parts from the service. After the customer authenticates the transaction with a signature, the field service agent can generate and sent to the customer an invoice based on the agreed upon services. In case allowances and mileage can be forwarded to the customer, it will be shown on the invoice.
Because you use field service automation, it means that the customer will receive the invoice really fast ? in days rather than weeks ? and transparency will skyrocket because the whole experience of the service will leave a permanent mark in their mind.

Mistaking information for transparency

Being honest with your customer is the one thing. Wasting their time with unnecessary information is another. Here is an experience I had with a small retailer. Tracking information is only useful if it has recent updates and is accurate. If the company want to use real time tracking, let them do so under one condition ? updates should be regular and on time so as not to leave the customer frustrated because they also make plans based on the same information. Late updates shed light on the nature of the service command. Everyone hates cooked-up real time information.

A company must not always have a one to one exchange of information with customers to maintain transparency..

  • Use simple language that all customers can understand
  • Don’t use abbreviations that only employees know
  • Never ever air your failures and flaws to your customers

It is interesting that most of the tools we use to keep in touch with our clients and servicing their requests can also be used to gather data and iron out possible errors to improve products and services. This is a good chance for service providers to evaluate and make necessary amendments.

There are some areas that will need improving while others will not, nevertheless, the client needs to always be informed and know why things are the way they are. Not all details should be told, so filter what you share.

5 ways field service supports customer service

Sales organisations are always in motion, working to deliver the right product to their customers. To keep customers smiling all times is hard and only needs close communication and fulfilling promises that were made to them. This is where the field service delivery team comes in. Field service can either meet this demand or fall short plummeting satisfaction rates.
This is a task that relies on right people using various parts and information to get the job done. No matter what, the customer always expects to get exceptional services whether it be over the phone, chats, in the field, online messaging, over email, or social media.

These five field service points are suitable for any business model and guarantee excellent company-client relations.

Proactive service

A proactive service gives more to the customer. More attention is given to the customer so that the right actions, deliveries and repairs are done. By getting everything right the first time, the customer has less to do ensuring that they are satisfied with the services.
However, the field service technician is flooded with a myriad of unpredictable situations; overheating equipment, stalled machines, and insufficient precaution. But through field management software, they get more data about the customer and type of service or parts expected and they easily ride through any storm and prevent future damage.

Transparency

Nothing frustrates a customer more than a schedule that delays repairs. They easily ditch you for better services elsewhere. By offering the customer a service where they book appointments based on their own availability, we can easily sync this to the technicians and manager?s calendar. This not only saves time but also money from otherwise idle equipment.

On-site and off-site collaboration

Having seamless communication between field and office technicians is vital. Field technicians need to know more about parts, repairs, client maintenance history, and predict what should be changed in the long run. The faster they do this the better.

There should be a system that creates and automates communication between field and office technicians. Let each have the upper hand when providing parts, products or services to the customer.

Flexibility

Information is key to field service agents. They make the first impression since they make the initial contact with clients. Regardless of the resources, the field technician must always be armed with mobile tools they will need to access online resources and be ready for any emergency.

Actionable performance improvements

Customers demand excellent service a company could offer. But as the game constantly shifts, the service management technicians must also come up with plans to stay up to par with competition. All these stems from coming up with KPIs, measuring them and turning them into a workable plan for the future.

Ready to work with Denizon?