What is Analysis?
A function is a series of actions
performed to meet one or more business purpose or to fulfill one or more
business requirements.
Functional
analysis corresponds to the various functional relationships among various
business functions. It mainly focuses on how the overall functionality is
developed and its interaction between entities.
Large or
complex business functions are more easily understood when broken down into
simpler functions using functional analysis.
Each business function can be
assigned to the below categories. In some cases, a function may be assigned in
both categories.
- Core Business category
Functions that may be included in
this category consist of those activities which are directly involved in
production, providing services, generating revenues and profits or management
of these areas.
- Administrative category
This category includes those
functions which service the firm as a legal entity and encourage its growth.
The administrative category basically contains functions such as personnel
(employees), buildings and maintenance, administrative executives, etc.
Applications of Functional
Analysis
- Functional Analysis is mostly used during the project analysis phase as part of the functional requirements document
- Functional Analysis is done after meeting with business analysts and subject matter expertise
- Achieve a detailed understanding of (business) components and their functions
- Perform an end-to-end study of the business operation and check each function to confirm that it is correct
- Role of Business Analyst in Functional Analysis
- Conducting feasibility study
- Defining new business opportunities
- Preparing business cases
- Conducting risk assessment of business functions
- Documenting and modeling business processes
- Alignment & automation of different business & IT processes
- Business Continuity planning and assistance in strategic decisions
- Assist in User Acceptance Testing sessions
An Overview of steps involved in
performing Functional Analysis
Requirements
A collection of elementary/general
functions. For instance, the core functions of the business may be product
development.
Expected Result
The result of the function
analysis is a thorough understanding of the functions and sub functions of the
business.
Procedure
1. Describe the main function of the
business in the form of a black box. If you are unable to define one main
function, go ahead to the next step.
2. Make a list of sub functions of
the main function to be performed.
3. For a complex business function,
develop a function structure. There are three principles of structuring: put
functions in a chronological order, connect inputs and outputs of flows between
functions.
- To visualize the chronological order, simply list the functions.
- To visualize the flows, connect boxes by arrows.
- To visualize hierarchy, draw a tree structure.
4. Elaborate the function structure.
Fit in a number of minute details which were left out and find variations of
the function structure so as to find the best function structure. One can
explore variations in functions by changing the sequence of sub functions and
splitting or combining functions. Exploring various possibilities is the
essence of function analysis: it allows for an exploration and generation of
possible solutions to the functional problem.
Conclusion:
The Functional Analysis is without
any doubt one of the most fundamental tool of business analysis as it
guarantees a thorough analysis of the requirements, it fosters the search of
alternative solutions, thus avoiding or at least limiting the risk of
forgetting valuable options. It is therefore of utmost importance for every
business analyst to learn how to apply Functional Analysis to explore new
concepts and then satisfactorily come out with innovative solutions.
About Author:
Harpreet Kaur Dua is a consultant in Systems Plus Pvt. Ltd. Within Systems Plus, she actively contributes to the areas of Technology and Information Security. She can be contacted at: harpreet.dua@spluspl.com
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