In Infotools Harmoni the size of the project has no technical limitations. However, the number of records and the number of sources influence the time required for analysis.
We recommend taking into account the below considerations.
We currently have a 2Gb limit on the files being uploaded. When adding/updating sources we recommend using Chrome. Other browsers such as IE may have time out limitations.
Creating a project – when data is added to a project, the number of variables in the dictionary, and particularly the number of user-created variables, is the biggest influencer on response time.
We recommend keeping the dictionary to less than 500,000 items.
The following are considered to be items in the dictionary:
- Each continuous variable = 1 item, e.g. Number of Shoes owned
- Each category in categorical variables = 1 item, e.g. Gender.Male
- Each cell in a yes/no matrix variable = 1 item, e.g. Brand.Attribute
- Each scale-point in a scale matrix variable = 1 item, e.g. Brand.Attribute.ScalePt
- Each verbatim = 1 item
The more items included in an analysis (cube), the longer it will take to run and render to the screen. For ease of interpretation, we recommend keeping the number of cells in an analysis to under 10,000 cells (e.g. 100 rows x 100 columns), although performance degradation will not occur until well beyond that.