Fitts‘ Gesetz ist eine Möglichkeit vorherzusagen wie lange Personen brauchen um etwas zu zeigen. Das Gesetz wurde in vielen verschiedenen Bereichen gezeigt, so gilt es bei Personen unter Drogeneinfluss als auch bei Menschen die mit der Technik nicht vertraut sind.
Fitts Gesetz aus https://de.wikipedia.org/wiki/Fitts%E2%80%99_Gesetz
Dies ist die Originale Schwierigkeitsformel mit D als Abstand zum Ziel und W als Breite. Dies bedeutet in der Anwendung das z.B. oft zusammen benutze Icons nahe aneinander zu positionieren, da damit D und somit auch ID kleiner wird. Die gleiche Idee wird auch verwendet wenn man Menüs am Mauszeiger oder an einem angeklickten Icon öffnet. So kann man in Windows durch diese Methode schnell einen neuen Ordner erschaffen ohne das man lange nach einem sich öffnenden Fenster suchen müsste.
Das Chorded Keyboard, oder auch Akkordtastatur ist eine andere Art von Eingebegerät. Dieses wurde auch, genauso wie die Maus, 1968 von Douglas Engelbart auf „the Mother of All Demos“ vorgestellt. Sein Model hatte 5 Tasten mit denen, ähnlich wie bei einem Klavier Akkorde gespielt werden können und daraus Buchstaben entstehen. Buchstaben wurden der Reihe nach kodiert also war das „c“ z.B. eine 3. Die verschiedenen Tasten seiner 5 Tasten Tastatur waren: 1,2,4,8 und 16 um als ein c zu schreiben musste man taste 1 und 2 drücken und sobald man sie losgelassen hat Erschien ein c. Neuartigere Akkordtastaturen haben meist zusätzliche Tasten da man oft zusätzliche Features, wie Zeichensetzung Absätze Umschalttaste etc. braucht so hat das Decatxt beispielsweise 10 Tasten. Auch gibt es Chorded keyboards programmierbaren Macrotasten.
Due to time restrictions we only met once after we already did our prototype versions. In the meeting we changed some details and extended the digital prototype further on.
The use case and/or model (task analysis from last assignment) this prototype relates to.
Our Use case describes a user adding a recipe into his list. We describe this scenario in the digital version. In the paper prototype we focused on the process to create a profile with the individual needs of our persona.
How the storyboard is reflected in your prototype.
The storyboard is reflected in our prototype in such a way that the adding of recipes to the list is shown and the individual account settings are adjustable
Self-assessment of potential strengths and weaknesses of this first step into your design space.
In our opinion, doing a paper prototype is a lot of work compared to a digital prototype. Also changes in the paper prototype are a lot expenditure because in the worst case you have to redo the whole screen in more than one state of the prototype. The strength of the prototype is that we got an idea of how the usage of the app will feel.
Our user group includes cooking enthusiasts who like to minimize their waste of leftover cooking ingredients and need some food inspiration as well as some help to organize the weekly shopping list. Stakeholders might be grocery stores, cookbook authors and publishers.
What is the exact problem?
It is difficult to use leftover cooking ingredients without having a matching recipe. Another challenge is to find the time to think about possible recipes due to work or study time restrictions. People with allergies or people who follow a specific diet have to manually filter out certain ingredients
Where is your user group interacting with your software?
Mostly at home, but it’s also possible to interact with the software while they are on their way home or to the supermarket.
When is the user group interacting with your software?
During meal planning.
Whydo your users need this software? Why is that interesting?
Now that a lot of people are working or studying from home the need of having home cooked meals increases. However, many don’t have a lot of different recipes in their repertoire so the need to find different recipes increases. Many apps have countless recipes which means it can be hard to choose exactly the one you want, and it gets even more frustrating if after choosing one you see that one of the main ingredients is exactly the one you are allergic to or aren’t allowed to use based on your current diet.
How do you want to solve the problem?
We want to create a mobile app that provides the user with recipe ideas, that can be filtered by ingredients they already have at home and ingredients they don’t want in their meal. The app also supports the user by automatically creating a shopping list for all the chosen meals while excluding the ingredients that are already available.
