LITA Lean IT Foundation Interview Questions

While some interviewers have their own style of questioning, most job interviews follow a set of questions and responses (including some of the most often-asked behavioural interview questions). Here are some of the most common interview questions, as well as some of the best answers. Let’s start with some professional advise on how to prepare for your LITA Lean IT Foundation Interview:

1.What is the Ishikawa diagram?

The cause and effect diagram, or fishbone diagram, is another name for the Ishikawa diagram. Following the brainstorming session, we use this to categorise all of the difficulties into six Ms (manufacturing) and four Ps (productivity) (service industries).

2. Explain the definition of process and the basic processes in an organization.

A business process is a series of interconnected operations that culminate in the delivery of a service or product to a customer. A business process is also defined as a series of actions and tasks that, when finished, will help an organisation achieve its objectives.

3.In Lean Manufacturing, what are the seven waste products?

Muda refers to the lean process of eliminating waste. According to appearances, waste elimination occurs within the production system; Lean is responsible for several sorts of waste, including as constant human motion. Its goal is to integrate all of the procedures required for holistic, high-efficiency production. Simultaneously, it lowers total expenditures while increasing revenue. Inventory, defects, waiting, over-processing, transportation, and overproduction are now classified as seven categories of wastes in Lean Manufacturing.

4. Explain the SIPOC model in LITA Lean IT Foundation.

Define, Measure, Analyze, Improve, and Control are some of the stages in the Six Sigma technique. DMAIC is an acronym that stands for Define [D], Measure [M], Analyze [A], Improve [I], and Control [C]. Six Sigma DMAIC is the acronym for this method. Before beginning work on a project, process management teams use the SIPOC model during the ‘Measure’ stage of the Six Sigma DMAIC to find relevant aspects for process changes.

The SIPOC model encourages teams to examine critical process factors including the process’s suppliers [S], the process’s essential inputs [I], the process’s various functions [P], the process’s expected outputs [O], and the process’s customer [C] or end-user, who receives the process’s outputs.

5. What do you understand by Value stream mapping (VSM)?

VSM (value stream mapping) is a lean tool that uses a flowchart to describe each phase of the process. VSM is seen by many lean practitioners as a critical tool for identifying waste, reducing process cycle times, and implementing process improvement.

6. What would you do if you were given a VOC/VOP?

After receiving client complaints and the Voice of the Process, we must do a Critical to Quality assessment, which allows us to convert consumer feedback into metrics. Six Sigma would take real-world issues and turn them into statistical issues with statistically derived solutions.

7. Define milestones in LITA Lean IT Foundation.

The methodology used in the Six Sigma process is either DMAIC or DMADV, and each stage should have certain time durations. Milestones provide the time duration limit for each stage, and extending the time limitations requires consent from stakeholders.

8. What is the difference between the ARMI and the RASIC?

The entire Six Sigma team learns who the authorised person is, who is responsible for the project, who should be a consultant, and who should be notified with the help of ARMI or RASIC, ensuring that there are no conflicts at work.

9. What is the difference between Gauge R and R in LITA Lean IT Foundation?

We measure repeatability and reproducibility in Gauge R and R. You must explain the distinction between repeatability and reproducibility in this section.

10. What is the Normal Distribution? What should you do if the data is out of the ordinary?

We see the p-value in the Normal distribution, and if it is not normal, we try to make it normal or use the Box-Cox transformation.

11.What are the elements of Lean Manufacturing that are most important?

The following are the most important aspects of Lean Manufacturing:

• In order to develop trust between the workforce and management, empower people and fellow employees in the firm.
• Waste should be eliminated. Given that the primary motivation for firms to implement lean in their manufacturing plants is to reduce waste. It is critical to concentrate on this USP.
• Lean tries to simplify things as much as possible in order to make the entire process visible and simple to recall.

• As in production, concentrate on one issue at a time; there is always one or the other. In a very expressive approach, lean manufacturing could assist solve one problem after another without compromising.
• A smooth flow of data with the least amount of friction possible.
• Knowing when a process isn’t working requires cutting-edge visual interpretation.
• Making procedures and products of the highest quality, most efficient, and consistent.

12. What is Process Capability and what is the difference between Cp and Cpk?

Here, we must include all relevant information about the process and its capabilities, as well as some real-world instances. Also, what is the difference between Cpk and Cp, and when should we not use Cp.

13. What is the best way to define the problem statement?

The problem should be clear and concise, with metrics provided to make it easier for stakeholders to grasp what will happen if the problem is not solved; future ramifications should also be discussed with stakeholders.

14. What is the best way to collect data?

First, we must understand Y = F(x), which means we must understand what all factors have an impact on Y, and correspondingly, we must stratify our data collection.

15. What is the difference between Alpha and Beta risk, or what is the P value?

Before explaining alpha and beta risk, it’s important to understand H0 and Ha. H0 is acceptable when the p-value is greater than 0.05 or 5%. Then, if it’s less, we’ll take it. Further, on occasion, what we accept or reject may be incorrect assumptions, putting us at risk, which could include alpha and beta risk. And the p-value is the probability that we are at 5% risk chances or probability when we have 95 percent confidence in our sample.

And if the p-value is greater than 5%, we follow H0 because the risk is larger; however, if the p-value is less than 5%, we are willing to take the risk and embrace Ha. As a result, when we look at these dangers, it can be very evident what all the repercussions of having these risks are.

16.What is Value Stream Mapping, exactly?

Describe the VSM, and here questions about the differences between the process map and the VSM could be posed. They could inquire about cycle time, takt time, and lead time. As a result, we must be absolutely explicit about all of those occasions.

17. What is a Pareto chart, and what is it used for?

In six sigma and quality, Pareto is the most commonly utilised tool. Here you must describe the Pareto analysis and define each and every feature of the Pareto chart in order to prioritise the issues or causes. How many data points does Pareto require? What happens if the Pareto ratio is 50:50? So, by all of this, we imply that we must understand every part of Pareto.

18. What hypothesis test should we do if the data is non-normal?

If the data is non-normal, we must first attempt to normalise it; if this is not possible, we must apply non-normal hypothesis testing, based on the subgroup size.

Questions about what improvement plans you developed or the tools you utilised can be asked after the analyse phase. The FMEA can be used to enhance things, therefore we need know what it is and what varieties of FMEA there are, as well as what RPN value is and how to calculate it. We can also use the affinity diagram for problem solving, which can be accomplished through brainstorming.

19. What is the need for control and why is it necessary?

Once the improvement has been sustained, control must be implemented. Control is frequently performed after the project is completed to ensure that no concerns remain.

20. What are the different types of control charts?

We must provide information on any control charts, both continuous and discrete, that we utilise.

21. What are the rules for control charts?

The specifics for control charts and all the restrictions, as seen in Minitab and Nelson’s rule, must be provided here.

22. What’s the distinction between a histogram and a box plot?

Despite the fact that they both provide the same information, their applications differ. These are used to store data that is updated on a regular basis.

23. Explain the difference between specification limits and control limits?

The process determines the control limits. It’s the value that the process is working with in real time. The customer specifies the specification limit, and the client sets the process targets based on market performance.

24. Describe the various varieties of SLA.

There are three types of service level agreements:

• Between you and the external customer, there is a Customer Service Level Agreement.
• An internal service level agreement between you and an internal customer, which could be a department or another company.
• Between you and the seller, there is a Vendor Service Level Agreement.

25. Describe a Known Error.

A Known Error is an issue that has been detected and has a known cause and solution. It is made up of the following elements:

• Status
• Error Description
• Root Cause
• Workaround

26. Explain the difference between proactive and reactive issue solving.

The primary distinction between proactive and reactive problem management is that proactive problem management prevents incidents by identifying potential problems and errors in the IT infrastructure, whereas reactive problem management identifies and eliminates the root cause of incidents that have occurred.

27. Define the terms “incident” and “issue.”

A issue is the underlying cause of these incidents, while an incident is an event that causes disturbances and disruptions in an IT service.

28. What is the distinction between customers and end-users in LITA Lean IT Foundation?

A client is a person who has the option of selecting from a variety of items or suppliers, whereas an end-user is the person who receives a product or service directly.

29. How important is it to have an information security policy in LITA Lean IT Foundation ?

Organizational information and data are protected by information security policies from security risks and threats.

30. What does a Balanced Scorecard aim to achieve in LITA Lean IT Foundation?

A Balanced Scorecard aids in the realisation of an organization’s objective. It entails strategic planning in order to work on an organization’s internal functions.