{"id":25782,"date":"2025-02-12T14:05:49","date_gmt":"2025-02-12T14:05:49","guid":{"rendered":"https:\/\/controlar.com\/?p=25782"},"modified":"2025-03-28T14:06:43","modified_gmt":"2025-03-28T14:06:43","slug":"the-evolution-of-quality-assurance-in-test-engineering-beyond-bugs","status":"publish","type":"post","link":"https:\/\/controlar.com\/en\/the-evolution-of-quality-assurance-in-test-engineering-beyond-bugs\/","title":{"rendered":"The Evolution of Quality Assurance in Test Engineering: Beyond Bugs"},"content":{"rendered":"[vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][vc_column_text]Quality Assurance (QA) has been a fundamental pillar in test engineering since its inception. While QA is commonly associated with simply detecting software errors, its scope today goes far beyond that, especially in high-demand sectors such as automotive, defense, and aerospace.<\/p>\n

At Controlar<\/strong> and EIIT \u2013 a Controlar company,<\/strong> (a Spanish company specializing in electronic board testing and automation of production processes), quality assurance QA plays a pivotal role in ensuring the reliability and safety of electronic systems. In the following sections, we will explore the evolution of quality in testing and its impact on the industry, drawing insights from our own experiences.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][divider line_type=”No Line”][vc_custom_heading text=”1. The Origin of the \u201cBug\u201d and Its Relevance in Test Electronics”][divider line_type=”No Line”][vc_column_text]The term\u00a0\u201cbug\u201d<\/strong>, used to refer to a software error, originates from a 1947 incident when engineers found a moth inside the relay of the Mark II computer, causing a system failure. While today\u2019s software errors are digital rather than physical,\u00a0test engineering still faces issues caused by unexpected factors<\/strong>, such as electromagnetic interference, assembly errors, or defects in electronic components.<\/p>\n

When developing test systems for electronic boards<\/strong>, we encounter defects that are not only software-related but also influenced by physical variables such as\u00a0faulty connections, thermal issues, or soldering failures<\/strong>. Therefore, our methodology not only evaluates the\u00a0test control software<\/strong>\u00a0but also conducts\u00a0structural and functional verifications<\/strong>\u00a0on the hardware.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][divider line_type=”No Line”][vc_custom_heading text=”2. From Final Verification to Prevention: The Evolution of QA”][divider line_type=”No Line”][vc_column_text]Historically,\u00a0quality was verified at the end of the production process<\/strong>, when the product was already finished. However, modern QA approaches focus on\u00a0prevention, ensuring that defects are identified and corrected before the product reaches the market.<\/p>\n

In the\u00a0electronic board testing industry, this shift has been crucial. For example, at EIIT- A Controlar company<\/strong>, we implement\u00a0in-line testing and automated test strategies, enabling\u00a0early detection of errors during the board assembly process. This not only\u00a0reduces the cost of correcting errors in later stages<\/strong>\u00a0but also\u00a0improves traceability and product reliability<\/strong>, especially in\u00a0safety-critical sectors like aerospace and defense<\/strong>.[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”center” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][image_with_animation image_url=”25786″ image_size=”medium_large” animation_type=”entrance” animation=”None” animation_movement_type=”transform_y” hover_animation=”none” alignment=”” border_radius=”none” box_shadow=”none” image_loading=”default” max_width=”100%” max_width_mobile=”default”][vc_column_text]\n

PCB In-Line Test Equipment Manufacturing at EIIT \u2013 A Controlar company<\/span><\/p>\n[\/vc_column_text][\/vc_column][\/vc_row][vc_row type=”in_container” full_screen_row_position=”middle” column_margin=”default” column_direction=”default” column_direction_tablet=”default” column_direction_phone=”default” scene_position=”center” text_color=”dark” text_align=”left” row_border_radius=”none” row_border_radius_applies=”bg” overflow=”visible” overlay_strength=”0.3″ gradient_direction=”left_to_right” shape_divider_position=”bottom” bg_image_animation=”none” gradient_type=”default” shape_type=””][vc_column column_padding=”no-extra-padding” column_padding_tablet=”inherit” column_padding_phone=”inherit” column_padding_position=”all” column_element_direction_desktop=”default” column_element_spacing=”default” desktop_text_alignment=”default” tablet_text_alignment=”default” phone_text_alignment=”default” background_color_opacity=”1″ background_hover_color_opacity=”1″ column_backdrop_filter=”none” column_shadow=”none” column_border_radius=”none” column_link_target=”_self” column_position=”default” gradient_direction=”left_to_right” overlay_strength=”0.3″ width=”1\/1″ tablet_width_inherit=”default” animation_type=”default” bg_image_animation=”none” border_type=”simple” column_border_width=”none” column_border_style=”solid” column_padding_type=”default” gradient_type=”default”][divider line_type=”No Line”][vc_custom_heading text=”3. The Importance of Testing vs. Coding”][divider line_type=”No Line”][vc_column_text]While coding is essential for software development and embedded systems, in many cases,\u00a0testing has an even greater impact on the end-user experience<\/strong>. A functional but poorly tested code can cause unpredictable failures, affecting everything from\u00a0medical devices to industrial control systems<\/strong>.<\/p>\n

Controlar companies work with advanced functional and structural tests<\/strong>, ensuring that an electronic board not only operates but also behaves correctly under\u00a0extreme conditions<\/strong>. This involves techniques such as:<\/p>\n