Design
Muhtasari
Once the analyst knows what the new system must do, the next stage is to design it on paper before anyone builds it. Design is where the shape of the data, the look of the screens and printouts, and the rules that keep bad data out are all decided in detail. A good design saves enormous amounts of wasted effort later, because mistakes are far cheaper to fix on a design sheet than in finished software.
In this lesson you will learn how to design file and data structures, choosing field names, lengths and data types and using codes to save space. You will design data capture forms, screen layouts and report layouts, and you will master the six validation routines (range, character, length, type, format, presence) plus the check digit, knowing exactly what each one does and when to use it.
Malengo
- Design.
- Design file/data structures, input formats, output formats and validation routines File/data structures including field length, field name, data type, coding of data for example M for male, F for female Validation routines including range check, character check, length check, type check, format check, presence check, check digit Input formats including data capture forms Output formats including screen layouts and report layouts.
Maelezo ya Somo
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Tathmini ya Somo
Hongera kwa kukamilisha somo la Design. Sasa kwa kuwa umechunguza dhana na mawazo muhimu, ni wakati wa kuweka ujuzi wako kwa mtihani. Sehemu hii inatoa mazoezi mbalimbali maswali yaliyoundwa ili kuimarisha uelewaji wako na kukusaidia kupima ufahamu wako wa nyenzo.
Utakutana na mchanganyiko wa aina mbalimbali za maswali, ikiwemo maswali ya kuchagua jibu sahihi, maswali ya majibu mafupi, na maswali ya insha. Kila swali limebuniwa kwa umakini ili kupima vipengele tofauti vya maarifa yako na ujuzi wa kufikiri kwa makini.
Tumia sehemu hii ya tathmini kama fursa ya kuimarisha uelewa wako wa mada na kubaini maeneo yoyote ambapo unaweza kuhitaji kusoma zaidi. Usikatishwe tamaa na changamoto zozote utakazokutana nazo; badala yake, zitazame kama fursa za kukua na kuboresha.
- Which validation routine would check that a date is entered as dd/mm/yyyy? A. Range check B. Format check C. Presence check D. Type check Answer: B
- A telephone number should be stored as which data type? A. Numeric: integer B. Boolean C. Alphanumeric/text D. Currency Answer: C
- The field that uniquely identifies each record is called the: A. Foreign key B. Primary key C. Field length D. Data type Answer: B
- Which validation routine can detect that two digits have been transposed during input? A. Length check B. Presence check C. Check digit D. Type check Answer: C
- Validation is best described as a check that data is: A. Accurate B. Correct C. Reasonable D. Verified Answer: C
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Inapatikana kwenye programu ya Green Bridge
Pakua programu ya Green Bridge CBT kwenye simu yako au kompyuta yako ili kupata maelezo kamili ya masomo, maswali ya mazoezi, na mengi zaidi.
Vitabu Vinavyopendekezwa
Fanya Mazoezi ya Maswali ya Majaribio
Ungependa kufanya mazoezi ya maswali ya majaribio kuhusu Design? Pakua programu ya Green Bridge CBT ili kupata maswali ya majaribio na tathmini kamili za mazoezi kuhusu mada hii.
Pakua Programu Kwenye Google Playstore
Kila kitu unachohitaji ili kufaulu katika JAMB, WAEC & NECO.
