Summary
Samenvatting Managementinformatiesystemen 3 (MIS 3)
- Course
- Institution
In deze samenvattingen worden alle vaardigheden uitgebreid besproken voor het tentamen MIS 3 op de studie bedrijfskunde aan de Hanzehogeschool Groningen.
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Managementinformatiesystemen 3 (1 college)2. Gegevensstormen...........................................................................................................................2
2.1 Gegevensstroomdiagram..........................................................................................................2
2.2 Contextdiagram........................................................................................................................2
2.3 Niveau-1 diagram......................................................................................................................3
2.4 Niveau-2 diagram......................................................................................................................3
2.5 Samenhang tussen de niveaus..................................................................................................4
3. Database.........................................................................................................................................4
3.1 Bestand.....................................................................................................................................4
3.2 Record.......................................................................................................................................4
3.3 Attribuut...................................................................................................................................4
3.4 Databasemanagementsysteem................................................................................................4
3.5 Mutaties...................................................................................................................................4
3.6 Transacties................................................................................................................................5
4. Datawarehouse...............................................................................................................................5
4.1 Big data.....................................................................................................................................5
4.2 Waarom is deze informatie nodig?...........................................................................................5
5. Theorie Databaseontwerp..............................................................................................................7
5.1 Benaderingen voor databaseontwerp......................................................................................7
5.2 Entiteit......................................................................................................................................7
5.3 Relaties.....................................................................................................................................7
5.4 Sleutels.....................................................................................................................................7
6. Databaseontwerp...........................................................................................................................8
Opgave + Stappenplan....................................................................................................................8
Stap 1, Inventariseren van alle gegevens........................................................................................9
Stap 2, Procesgegevens weghalen uit de lijst.................................................................................9
Stap 3, Entiteiten (objecten, tabellen) bepalen..............................................................................9
Stap 4, Primaire sleutels bepalen en weghalen uit de lijst..............................................................9
Stap 5, Uniek?...............................................................................................................................10
Stap 6, Bepalen waar de overige attributen iets over zeggen.......................................................10
Stap 7, Teken de ERD van de tot dusver gevonden entiteiten......................................................10
Stap 8, Verbind de entiteiten met (1:N) relaties en hef de (N:M) relaties op...............................10
Stap 9, Wijs overgebleven attributen toe aan de entiteiten.........................................................12
Stap 10, Verwijder de entiteiten met slechts 1 attribuut..............................................................12
, Hoorcollege 1 (11 september)
1. Informatiesysteem
= Een informatiesysteem is een systeem dat als doel heeft de gewenste uitvoergegevens
op te leveren.
= Een informatiesysteem kan worden gedefinieerd als een set aan elkaar gerelateerde
componenten die informatie verzamelen, verwerken, opslaan en verspreiden ter
ondersteuning van de besluitvorming, coördinatie en controle binnen een organisatie.
2. Gegevensstormen
2.1 Gegevensstroomdiagram
External (Bron of bestemming
Internal (Proces)
Data store (Opslag)
Data flow (Gevensstroom)
2.2 Contextdiagram
Een contextdiagram is een vereenvoudigd totaalbeeld van het informatiesysteem.
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