Question

It is possible to estimate software size before coding. Justify your answer

Answer 1

Answer:

Estimation of the size of software is an essential part of Software Project Management. It helps the project manager to further predict the effort and time which will be needed to build the project. Various measures are used in project size estimation. Some of these are:

Lines of Code

Number of entities in ER diagram

Total number of processes in detailed data flow diagram

Function points:

Answer 2

Answer:

The correct answer to the given  question is:

Yes, it is possible to estimate software size before coding.

Explanation:

However, a correct estimate may not be possible based on (line of code) LOC.

• The size of the software can be estimated by comparing it with existing systems of the same type.
• Experts use it to predict the required size of different software components and then add them together to get the total size.
• It is really difficult to estimate the LOC by analyzing the definition of the problem. Once all the code has been developed, an exact LOC can be estimated.
• This statistic is of little or no use to project managers because project planning must be completed before development can begin.
• Two separate source files with the same line number may not require the same amount of effort.
• A file with complex logic takes longer to create than a file with simple logic.

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