You have to use the same information system and business processes identified and used in assignment1( I used Sales System) (business processes: I used HUMAN RESOURCE, SALES, PAYROLL and PURCHASE)to solve the below sub tasks.#note: please solve all questions

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1. Prepare the Context diagram for the information system chosen in assignment1. The context diagram is expected to have:

o Thesystem(4marks)

o Minimum 4 External Entities

o Atleast8inputandoutputdataflows

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2. Prepare the Level 0 DFD (Data Flow Diagram) for the above context diagram showing all the

business processes identified in assignment 1. The Level 0 DFD is expected to have:

o All the major business processes (at least 4 expected) o All the External Entities

o All the input and output data flows

o Minimum 2 Data stores

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3. Prepare the Level 1 DFD of any one of the processes identified in the Level 0 DFD.

Minimum 2 sub processes expected.

The diagram should be consistent with level 0 DFD.

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4. Design an Input Form for the above mentioned scenario following the guidelines of creating an Input Form. Also briefly explain the guidelines followed in creating the form.

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5. Design an output Form for the above mentioned scenario following the guidelines of creating an output Form. Also briefly explain the guidelines followed in creating the form.