Otro

ICT Assignment 3 solution

9 veces vendidas

Grado
ICT2621 - Structured Systems Analysis And Design (ICT2621)

Institución
University Of South Africa (Unisa)

ICT Assignment 3 solution Questions: Question 1 NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set. 1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table to present your answer. (6) 1.2 Briefly describe the ...

[Mostrar más]

Vista previa 2 fuera de 8 páginas

Ver ejemplo

Subido en 12 de julio de 2023
Número de páginas 8
Escrito en 2022/2023
Tipo Otro
Personaje Desconocido

ict2621 2023 assignment 3

Institución
University of South Africa (Unisa)
Grado
ICT2621 - Structured Systems Analysis And Design (ICT2621)

Seguir

CrystalIndigo

Miembro desde 4 año 433 documentos vendidos

3,58 €

Añadir al carrito

Añadir a la lista de deseos

100% de satisfacción garantizada
Inmediatamente disponible después del pago
Tanto en línea como en PDF
No estas atado a nada

1.1
NAME DRAWING DESCRIPTION
PROCESS Receive input data and produce
output that has different
content, form, or both

DATA STORE Represent data that the system
stores because one or more
processes have to use data at a
later time

DATA FLOW A path for data to move from
one part of the information
system to another, it represents
one or more data items
EXTERNAL A place, person, things or event
ENTITY for which data is collected and
maintained

1.2 Levelling - Levelling involves creating a series of progressively more detailed diagrams
until all essential components are identified, aiming to achieve the desired level of detail.
Balancing - Balancing is a process that ensures consistency across a set of Data Flow Diagrams
(DFDs) by aligning input and output data flows correctly. It is applied to maintain consistency
throughout a sequence of diagrams, encompassing input and output data flows, data definition, and
process descriptions. Balancing guarantees the preservation of input and output data flows from the
parent DFD to the child DFD.
Data dictionary - A data dictionary, also known as a data repository, serves as a centralized
repository of information concerning a system's data. It is utilized by analysts to collect, document,
and organize specific details about the system, such as the contents of data flows, data stores,

, entities, and processes. Additionally, the data dictionary defines and describes all data elements and
meaningful combinations of data elements.

1.3
Spontaneous generation

Black hole

Gray hole

Los beneficios de comprar resúmenes en Stuvia estan en línea:

Garantiza la calidad de los comentarios

Compradores de Stuvia evaluaron más de 700.000 resúmenes. Así estas seguro que compras los mejores documentos!

Compra fácil y rápido

Puedes pagar rápidamente y en una vez con iDeal, tarjeta de crédito o con tu crédito de Stuvia. Sin tener que hacerte miembro.

Enfócate en lo más importante

Tus compañeros escriben los resúmenes. Por eso tienes la seguridad que tienes un resumen actual y confiable. Así llegas a la conclusión rapidamente!

Preguntas frecuentes

What do I get when I buy this document?

You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.

100% de satisfacción garantizada: ¿Cómo funciona?

Nuestra garantía de satisfacción le asegura que siempre encontrará un documento de estudio a tu medida. Tu rellenas un formulario y nuestro equipo de atención al cliente se encarga del resto.

Who am I buying this summary from?

Stuvia is a marketplace, so you are not buying this document from us, but from seller CrystalIndigo. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy this summary for 3,58 €. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

45,681 summaries were sold in the last 30 days

Founded in 2010, the go-to place to buy summaries for 15 years now

Empieza a vender

Otro

ICT Assignment 3 solution

Información del documento

Temas

Escuela, estudio y materia

Vendedor

Comentarios recibidos

Vista previa del contenido