From dd2ad4d9bfb84b8675822ac442e5c1c82ddd616d Mon Sep 17 00:00:00 2001 From: Jet Hughes Date: Mon, 13 Jun 2022 13:24:25 +1200 Subject: [PATCH] vault backup: 2022-06-13 13:24:25 --- content/notes/i201-practice-2.md | 19 +++++++++++++++++++ content/notes/i201-practice.md | 2 +- 2 files changed, 20 insertions(+), 1 deletion(-) create mode 100644 content/notes/i201-practice-2.md diff --git a/content/notes/i201-practice-2.md b/content/notes/i201-practice-2.md new file mode 100644 index 000000000..ba63c64db --- /dev/null +++ b/content/notes/i201-practice-2.md @@ -0,0 +1,19 @@ +--- +title: "i201-practice-2" +aliases: +tags: + +--- + +# Section A +## 1 +a) a member of staff can book and appointment. when this occurs the staff member can optionally add a new customer +b ) a member of staff can book and appointment. when this occurs the staff member must also add a new customer +b ) a member of staff can book and appointment. when this occurs the staff member must add a new customer before the appointment is created + +## 2 +a) this could cause an update anomly. this is because there is reduncancy as same product is stored in the database twice +b) the database should be normalised to remve the redundancy. it could be separated into three entities: store, product, and an associative entity + +## 3 + diff --git a/content/notes/i201-practice.md b/content/notes/i201-practice.md index 92f7c4231..0f3bf784e 100644 --- a/content/notes/i201-practice.md +++ b/content/notes/i201-practice.md @@ -5,7 +5,6 @@ tags: --- - # Section A ## 1 a) sequence diagram - to document a *sequence* of particpant interactions required to carry out a use case @@ -49,3 +48,4 @@ use predictive when # Section B ## 8 + \ No newline at end of file