Table A2 Overview of secondary data...

Table A2

Overview of secondary data sources and their analytical role in the study

Type of document	Description	No. of documents	Firm size category	Innovation institutionalization	Cases used	Role in analysis
Internal innovation reports	Project summaries, innovation rationales, development timelines and post-project reflections	18	Large; Small–medium	Highly formalized (large firms); selectively formalized (small–medium firms)	All cases	Used to contextualize innovation activities and triangulate interview narratives
Customer feedback summaries	Aggregated customer satisfaction surveys, innovation evaluation reports and feedback dashboards	9	Large	Highly formalized	2 cases	Informed interpretation of customer-perceived innovativeness based on documented customer evaluations
Product and service retrospectives	Post-launch reviews of product, service or solution development processes	11	Large; Small–medium	Moderately to highly formalized	3 cases	Supported identification of co-creation configurations and interaction patterns
Co-creation and collaboration records	Workshop materials, joint development documentation and collaboration logs	7	Large; Small–medium	Practice-oriented; partially formalized	2 cases	Provided evidence of customer involvement and interactional resource integration
Technical documentation and service blueprints	Descriptions of system integration, service processes and customer use contexts	16	Large	Highly formalized	4 cases	Enabled analysis of co-implementation practices and adaptation mechanisms
Marketing and public communications	Websites, brochures, presentations and public innovation narratives	14	Large; Small–medium	Formalized external signaling	All cases	Used to contextualize innovation signaling and external visibility of innovativeness
Reflexive field notes and analytic memos	Researcher notes capturing interaction dynamics, tone and contextual observations	12		Analytical (researcher generated)	All cases	Integrated into coding to enhance interpretive depth and reflexivity

Type of document	Description	No. of documents	Firm size category	Innovation institutionalization	Cases used	Role in analysis
Internal innovation reports	Project summaries, innovation rationales, development timelines and post-project reflections	18	Large; Small–medium	Highly formalized (large firms); selectively formalized (small–medium firms)	All cases	Used to contextualize innovation activities and triangulate interview narratives
Customer feedback summaries	Aggregated customer satisfaction surveys, innovation evaluation reports and feedback dashboards	9	Large	Highly formalized	2 cases	Informed interpretation of customer-perceived innovativeness based on documented customer evaluations
Product and service retrospectives	Post-launch reviews of product, service or solution development processes	11	Large; Small–medium	Moderately to highly formalized	3 cases	Supported identification of co-creation configurations and interaction patterns
Co-creation and collaboration records	Workshop materials, joint development documentation and collaboration logs	7	Large; Small–medium	Practice-oriented; partially formalized	2 cases	Provided evidence of customer involvement and interactional resource integration
Technical documentation and service blueprints	Descriptions of system integration, service processes and customer use contexts	16	Large	Highly formalized	4 cases	Enabled analysis of co-implementation practices and adaptation mechanisms
Marketing and public communications	Websites, brochures, presentations and public innovation narratives	14	Large; Small–medium	Formalized external signaling	All cases	Used to contextualize innovation signaling and external visibility of innovativeness
Reflexive field notes and analytic memos	Researcher notes capturing interaction dynamics, tone and contextual observations	12		Analytical (researcher generated)	All cases	Integrated into coding to enhance interpretive depth and reflexivity

Note(s):

(1) A “document” refers to a distinct organizational or research artefact (e.g. report, presentation, dashboard, workshop record or analytic memo), regardless of length or format

(2) Secondary data sources were used to triangulate interview material and to capture how customer evaluations of innovativeness are articulated, stabilized and mobilized within organizational and ecosystem practices

(3) In two cases, customer feedback summaries and innovation evaluation reports provided direct evidence of customer-perceived innovativeness, complementing interview accounts from supplier representatives with access to these materials

(4) Differences in the availability of customer evaluation data across cases reflect ecosystem roles, governance arrangements and documentation practices rather than analytical emphasis or data prioritization

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