SDLC Phases Phase 3 Systems Design User Interface

SDLC Phases Phase 3: Systems Design User Interface, Input & Output Design ������ n n ����� physical model ����������������������� user interfaces, ����� input ��������� output ������������ �� BC 423 Systems Analysis and Design 1

Introduction n Main focus n Users within and outside the company n n How users communicate with the information system n n �������������������� How the system supports the firms’ business operations ���������� BC 423 Systems Analysis and Design 3 ���������� n

Output Design BC 423 Systems Analysis and Design 5

Output Design n ������� output n ���� output : n n n n Audio Automated facsimile Computer output microfilm (COM) E-mail Internet-based Other specialized devices ���� POS ATM Printer Screen BC 423 Systems Analysis and Design 6

Printed and Screen Output n Printed reports are convenient and sometimes necessary n Used as turnaround documents n Output documents that are later entered back into the same or another information system n Printed output is highly visible n Should be attractive, professional, and easy to use BC 423 Systems Analysis and Design 7

Printed and Screen Output n Types of reports n Detail reports n n n Detail line Control field Control break report Can be quite lengthy Better alternative is to produce an exception report BC 423 Systems Analysis and Design 8

Printed and Screen Output n Types of reports n Control-break reports n ��� field ����������������� ������ n control break n ��������� ��� field ��������� � BC 423 Systems Analysis and Design 9

Printed and Screen Output n Types of reports n Exception reports n n n ����� record ����������������� ����� parameter ����������������� BC 423 Systems Analysis and Design 10

Printed and Screen Output n Types of reports n Summary reports n ���������� (subtotals) �������� (totals) n ������������������ ������ BC 423 Systems Analysis and Design 11

Printed and Screen Output n User involvement in Report Design n Printed reports are an important way of delivering information to users, so recipients should approve all report designs in advance To avoid problems submit each design for approval as you complete it, rather than waiting until you finish all report designs Mock-up BC 423 Systems Analysis and Design 12

Printed and Screen Output n ��������� n n n Report headers ��� footers : ���������� Page headers ��� footers : ���������� Column heading alignment : ����������� Column spacing : ������� Field order : ����� Grouping detail lines : ����������� n Group header BC 423 Systems Analysis and Design 13

Printed and Screen Output BC 423 Systems Analysis and Design 14

Printed and Screen Output n Designing character- Based Reports n n Character-based reports Printer spacing chart n A grid of rows and columns that represents the lines and positions on a page of printer paper BC 423 Systems Analysis and Design 16

Printed and Screen Output n Printing Volume & Time Requirements n ��������������������� � n ����������� n § Laser printer : ppm (pages per minute) § Line printers : lpm (lines per minute) BC 423 Systems Analysis and Design 17

Printed and Screen Output Control and Security n Output Security n ��������� -: § ������������������� § ���� Label ���������� (confidential reports) § ��������� sensitive reports & other output § Inventory blank checks regularly § ���������� 20 BC 423 Systems Analysis and Design

Printed and Screen Output Control and Security n Output Security n Diskless workstation § ���������� § ���������� copy BC 423 Systems Analysis and Design 21