Moving Data from SSI Web to SMRT for Analysis
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If conducting conjoint analysis studies (CBC, ACBC, ACA and CVA) with SSI Web, you'll often want to move the data from SSI Web into the SMRT software package for analysis (market simulations, counting analysis, logit, etc.). Sometimes data are moved directly into SMRT, and other times data are moved from SSI Web into a preliminary analysis program such as hierarchical Bayes, and then afterward to SMRT.


CBC (Choice-Based Conjoint) Data

When you download SSI Web data from the web server, your data reside in your SSI Web project folder in a database format studyname_data.sqlite file. The steps for moving data into SMRT are:

1. Export the CBC data (just the data directly involving the choice tasks) to a CBCexercise_name.CHO (text-only format) file. From the SSI Web menu, click File | Data Management then select the Export Data tab. Click Add Job... (provide a name and select a respondent numbering option for your export job) and under Export Settings, select Type is CBC. Click OK and then check the job name for your CBC export on the list. Click Export All Checked Jobs, and a CBCexercise_name.CHO file is written to your ExportJob folder within your study.  
 
2. Start the SMRT software (a different program from SSI Web, also downloadable from our website), by clicking Start | Program Files | Sawtooth Software | Sawtooth Software SMRT.  
 
3. Within SMRT, create a new study for analyzing the results (select File | New and choose a folder and a studyname). You can choose any folder or studyname that you want, as this new study functions independently of your original SSI Web study.  
 
4. Import the .CHO file into SMRT, by clicking (from the SMRT software menu) File | Import…, browsing to your .CHO file, and clicking Import. The raw choice data (respondent answers and experimental design) are now within the SMRT study. You can proceed with counting analysis or logit within SMRT.  

Note: If you use CBC/HB or Latent Class software to estimate part-worth utilities, use the .CHO (or .CHS, in the case of constant sum responses to be analyzed with CBC/HB) and .ATT files with those systems (see their respective manuals for details) to produce a data file containing respondent part-worths (a .HBU file if HB analysis, or .LCU and .Pxx files if Latent Class analysis). Then, import the resulting utility file into your SMRT study by clicking (from the SMRT software menu) Analysis | Run Manager | Import… and following the prompts to browse to and select your .HBU or Latent Class probability file (.Pxx). Once you import your utilities, you can select Analysis | Market Simulator and begin simulations.


Moving Segmentation (Generic Survey) Data from SSI Web to SMRT

We assume you have first followed the procedures above for estimating part-worth utilities and establishing those as a utility run in a new project within SMRT.

1. From the SSI Web system, export the data you wish to merge into SMRT. From the SSI Web menu, select File | Export Data | All Data…, select the respondent numbering method (the numbering method must match the method you chose when exporting the conjoint data or estimating utilities), and export the data you wish to merge into SMRT (only numeric data may be merged). Select either a .CSV file (comma-delimited text-only file) or a fixed text-only file (.TAB).  
 
2. Within the SMRT software, open the project previously established that contains the conjoint data/utility run. Use File | Merge Variables | Add… to merge the data into your SMRT project (see the SMRT manual or online help within SMRT for details). After merging the data, if using SMRT v4.11 or earlier, you'll additionally need to specify Custom Segmentation Variables (Under Analysis | Custom Segments) if you wish to use the new variables as banner points or respondent filters during simulations.