Complexity of a Program

[Former Member]

hii ,

i need to know that is there any tcode to find out complexity of a program ( simple, medium, complex) . i have more than 100 programs in my internal table i need to separate them complexity wise into simple , medium and complex...

I have small doubt Can we decide complexity based on program lines , based on number of function modules...etc...

thanks and regards.

Laxmi.

[Sandeep_Panghal]

Program complexity has NOTHING to do with number of lines or number of FM used.

It purely depends on the logic , amount data being fetched from DB.

[Former Member]

this is the sample estimantions for hrs basis

RICEFW Complexity FD_review TD TD_Review Build Code_Review UTP

Reports Low 2 8 1 24 1 12

Reports Medium 3 15 2 40 2 26

Reports High 4 20 3 60 4 29

Forms Low 2 8 1 24 1 12

Forms Medium 3 15 2 40 2 26

Forms High 4 20 3 60 4 29

Extensions Low 2 8 1 24 1 12

Extensions Medium 6 19 4 40 3 40

Extensions High 8 32 4 80 6 62

Interfaces Low 2 10 1 22 1 20

Interfaces Medium 3 28 2 72 3 36

Interfaces High 8 34 4 100 8 46

Conversions (LSMW) Low 2 11 2 24 1 24

Conversions (LSMW) Medium 3 15 2 40 2 26

Conversions (LSMW) High 4 20 3 60 4 29

Conversions (ABAP) Low 3 15 2 40 2 26

Conversions (ABAP) Medium 4 18 2 50 2 28

Conversions (ABAP) High 8 20 4 70 4 30

[christine_evans]

>

> Program complexity has NOTHING to do with number of lines or number of FM used.
> It purely depends on the logic , amount data being fetched from DB.

I agree. For example, any program that uses field symbols is likely to be more complex ie difficult to understand than one that does not, yet using field symbols can often reduce the number of lines of code drastically.

[Former Member]

Hi Sandeep,

Thank you for your quick reply...

you said It purely depends on the logic , amount data being fetched from DB.

Is there any standard table which stores all these..because i have a requirement to fetch all custom objects (Reports, scripts,smartforms.....etc ) and rate their complexities..

Thanks & Regards,

Laxmi

[Former Member]

Hi,,Kesava Reddy

Thank you for your reply...

How can we see all these Values..Is there any standard Table.

Thanks & regards,

laxmi.

[thomas_kempfle]

I disagree with this opinion: In contrast to its difficulty, the complexity of a source code object heavily depends on the number of variables and statements. And this is directly related to the number of code lines.

Briefly spoken: While it is virtually impossible to create a "complex" source in one line, you won't find a lot development above 100.000 lines, that somebody would regard as "simple" or "non-complex".

The complexity of a given source code can easily be measured with common software metrics, such as Halstead or McCabe. The SAP Code Inspector provides these metrics to the user, in newer releases.

[Former Member]

thank you for your replies

[ThomasZloch]

I'm afraid this is a manual and tedious task, no matter how often you try to initiate a new thread on this topic. It can be semi-automated by e.g. scanning for certain language constructs e.g. CALL TRANSACTION ... USING ... with report RPR_ABAP_SOURCE_SCAN. I had to do it for 300+ programs during our upgrade.

Maybe SAP or other vendors offer tools or consultation, but these would come at a price, obviously.

Also, what's considered complex or not probably differs from company to company...

Thomas

[Former Member]

Hi,

Did you check this thread??

[matt]

You've asked this question a second time. That question has been removed, as a duplicate, and so I've re-opened this one. Continue any discussion here

There are programs for calculating the cyclomatic complexity (one measure of complexity) of C and Java programs, which are open source. You could convert them to ABAP. E.g. http://eclipse-metrics.sourceforge.net/

matt

[Former Member]

Thank you for your replies..........

[kiran_k8]

Lakshmi,

Complexity differs based on perception ie A Developer perspective will differ from a  Businss User perspective.

When you see it from the perspective of a Business User,then the availability of the program,kind of criticial functionality it is handling,repurcussions of unavailability/failure of this program resulting in loss of time and business are the parameters that actually defines the complexity of a program.

My two cents 🙂

K.Kiran.